Great news!!
A friend of mine in NZ made some enquiries and calls and we have now confirmed that Berte Morey (nee' Verpillot) was indeed the sister of Aime'.
Further to that Berthe's daughter is still alive and living in NZ and we have spoken with her. She has more documents about him and his death plaque.
Thanks to everyone on this thread (and the other threads) for your wonderful input that has lead to solving this one. Both Sandra and I considered Aime' as being possibly the most difficult to track down and to have a successful outcome is a great bonus for our research.
This thread can now be marked as 'absolutely' completed.

Cheers,
Tim L.